Brake bleeding question

[Stocker]

Getting ready to replace my master cylinder and was told of a different (easier?) way to bleed the brakes. Never heard of it so I'll run it past you guys & see what you think.

Instead of the old way I have used before (wife pumping the pedal while I open & close each bleeder), this involves placing a length of tubing inside the bottle of fluid and connecting it to an open bleeder valve, then pumping the pedal until fluid is drawn up into the master cylinder.

Has anyone tried this, and does it work okay? Or is there a better (that is, easier) method?

I have done a little brake work (mostly just pad & shoe replacement) but it's been several years. Any advice is appreciated. Oh btw just how do you clamp the pin on the prop valve to keep it centered? Pics would be helpful.